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Waste Water Engineering

Waste Water Engineering
pH value of sludge during alkaline regression stage, is

Less than 6
More than 7
More than 6
Less than 7

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Waste Water Engineering
In olden days the type of section adopted in trunk and out fall sewers was

Horse shoe shaped
Circular shaped
Parabolic shaped
Egg shaped

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Waste Water Engineering
The width of a rectangular sewer is twice its depth while discharging 1.5 m/sec. The width of the sewer is

1.76 m
0.88 m
1.36 m
0.68 m

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Waste Water Engineering
The most widely used pump for lifting sewage is

Pneumatic ejector
Centrifugal pump
Air pressure pump
Reciprocating pump

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Waste Water Engineering
The pH value of fresh sewage is usually

Less than 7
Equal to zero
Equal to 7
More than 7

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Waste Water Engineering
The disintegrating pump in which solid matter is broken up before passing out, is

Pneumatic ejector
None of these
Centrifugal pump
Reciprocating pump

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